نتایج جستجو برای: visual modflow
تعداد نتایج: 360253 فیلتر نتایج به سال:
یکی از عوامل مهمّی که بتازگی در مباحث ژئوتکنیک زیست محیطی بدان توجّه زیادی شده است، شاخص ضریب پخش (distribution coefficient-kd) است. دامنه ی این شاخص به اندازه ای است که می تواند مقادیر «صفر» تا «هزار» و حتّی بیشتر را به خود اختصاص دهد. این دامنه ی گسترده در بحث مدل سازی و استفاده از مدل های رایانه ای جهت شبیه سازی حرکت و پراکنش آلاینده ها در خاک، نقشی مهم خواهد داشت. نرم افزار modflow یکی از نرم ...
FREEWAT is an ongoing GIS environment to serve as preand post-processor for running simulations of surface-/groundwater interaction, with the possibility to activate several features accounting for the different water stresses. This paper reports the capability related to address water resource management problems, by activating management tools available in the MODFLOW-OWHM code. The latter is...
The continuous aquifers of the Congolese Cuvette basin constitute seat significant water tables reversibly supplying Congo River as well they drain. Consisting mainly sandy-clayey-sandstone formations, these contain groundwater which is main source drinking supply for communities in this sector departments and Cuvette-Ouest. need being more acute, have been subjected to drilling operations orde...
برداشت بیش از اندازه از آبهای زیرزمینی و کاهش نزولات جوی در سالهای اخیر، سبب افت سطح این آبها شده است. بنابراین، لازم است با مدیریت بهینه، از واردآمدن خسارت به آن جلوگیری شود. هدف از این پژوهش، بررسی اثر افزایش راندمان آبیاری بر نوسانات سطح آب زیرزمینی آبخوان دشت عجبشیر است. با کمک نرمافزار Visual MODFLOW 3.1، آبخوان منطقه شبیهسازی شد. از آمار مهر 1383 برای واسنجی مدل در شرایط ماندگار و ا...
Iran is among the world’s arid and semi-arid regions and its demand for water has been increased due topopulation growth, urbanization and the development the economic sectors (industrial and agricultural). Inmany of these regions, the lack of planning and the unauthorized use of resources have led to excessiveexploitation and a lower level of groundwater. The usable groundwater for the country...
Water scarcity in northern Ethiopia, as well its socio-economic relevance terms of water demand for agriculture and domestic use, are at the root search new groundwater resources development models that can be used to control manage resource. The recharge Hormat-Golina sub basin was assessed using WetSpass-MODFLOW coupling. goal this paper is assess sub-basin. These findings then simulate hydra...
Simulation of Interaction Between Groundwater and Surface Water in Safwan-Zubair Area, South of Iraq
Groundwater in arid and semi-arid regions, such as the studied area (Safwan Al-Zubair area, south of Iraq), is specific meaning a major source for domestic use irrigation demand. There need to better understand interactions between groundwater surface water (Shatt Al-Basrah Canal). These can negatively affect quality this especially that Shatt Canal contains highly concentrated pollutants. The ...
groundwater drought is a natural hazard that develops when groundwater systems are affected by climatical drought, when climatical drought occures, first groundwater recharge, later groundwater levels and groundwater discharge decrease. the origin of drought is a deficit in precipitation and that takes place in all the elements that comprise the hydrological cycle (flow in the rivers, soil mois...
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